单元教学目标按照三步程式设计，即教学任务分析、单元教学目标确定和课堂教学目标确定。
The Unit Teaching Goals are designed into three steps, namely the analysis of teaching tasks, the destination of Unit Teaching Goals and destination of classroom teaching goals.
您可以在单元测试执行时，侦错程式码。
单元测试可协助改善程式码的品质，它可确保您所做的变更不会导致现有功能发生错误。
These tests can be run to check that changes to the database or database code do not affect existing database code.
避免破坏现有的资料库程式码：在将变更与小组共用前或将变更部署至实际执行环境前，如果能先执行现有的资料库单元测试，可以降低中断应用程式行为的风险。
Performing iterative database development: If you are a developer or a tester, you check out parts of the project and then update them in an isolated development environment.
避免破坏现有的资料库程式码：在将变更与小组共用前或将变更部署至实际执行环境前，如果能先执行现有的资料库单元测试，可以降低中断应用程式行为的风险。
Performing iterative database development: If you are a developer or a tester, you check out parts of the project and then update them in an isolated development environment.
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